diff --git a/template_hal_files/trasport_layer.c b/template_hal_files/trasport_layer.c
index 76c1d2f..79e3a7f 100644
--- a/template_hal_files/trasport_layer.c
+++ b/template_hal_files/trasport_layer.c
@@ -1,6 +1,8 @@
 /*
- * Copyright (c) 2020-2023 Arm Limited. All rights reserved.
+ * SPDX-FileCopyrightText: Copyright The TrustedFirmware-M Contributors
+ *
  * SPDX-License-Identifier: BSD-3-Clause
+ *
  */
 
 #include "psa_adac_debug.h"
@@ -27,6 +29,11 @@
     /* Code me */
 }
 
+int msg_interface_close(void *ctx)
+{
+    /* Code me */
+}
+
 int request_packet_send(void)
 {
     /* Code me */